or T.S.

See more synonyms for TS on Thesaurus.com

T, t

noun, plural T's or Ts, t's or ts.
  1. the 20th letter of the English alphabet, a consonant.
  2. any spoken sound represented by the letter T or t, as in tub, but, or butter.
  3. something having the shape of a T.
  4. a written or printed representation of the letter T or t.
  5. a device, as a printer's type, for reproducing the letter T or t.
  1. to a T, exactly; perfectly: That job would suit you to a T.Also to a tee.


noun (sometimes lowercase)
  1. T-shirt.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for ts



noun plural t's, T's or Ts
  1. the 20th letter and 16th consonant of the modern English alphabet
  2. a speech sound represented by this letter, usually a voiceless alveolar stop, as in tame
    1. something shaped like a T
    2. (in combination)a T-junction
  3. to a T in every detail; perfectlythe work suited her to a T


symbol for
  1. tonne(s)
  2. troy (weight)
  3. statistics distribution
  4. statistics See Student's t


symbol for
  1. absolute temperature
  2. tera-
  3. chem tritium
  4. biochem thymine
  5. tesla
  6. surface tension
abbreviation for
  1. Thailand (international car registration)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ts


to cross one's T's (and dot one's i's) "to be exact" is attested from 1849. Phrase to a T "exactly" is recorded from 1690s, though the exact signification is uncertain, despite much speculation. The measuring tool called a T-square is recorded by that name from 1785.

Online Etymology Dictionary, © 2010 Douglas Harper

ts in Medicine


  1. temperature
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

ts in Science


  1. Abbreviation of temperature, tesla, thymine
  2. The symbol for the isotope tritium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with ts


see dot the i's and cross the t's; to a T.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.